Pith Number

pith:GHMQMHRA

pith:2019:GHMQMHRAH3WGQ6SDTY33I7DN2R

not attested not anchored not stored refs pending

Modified PHT-splines

Jiansong Deng, Qian Ni, Xuhui Wang

arxiv:1904.08274 v1 · 2019-04-17 · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GHMQMHRAH3WGQ6SDTY33I7DN2R}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:48:18.186443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31d9061e203eec687a439e37b47c6dd47d0a79453df873f2e489e90c58f3c84f

Aliases

arxiv: 1904.08274 · arxiv_version: 1904.08274v1 · doi: 10.48550/arxiv.1904.08274 · pith_short_12: GHMQMHRAH3WG · pith_short_16: GHMQMHRAH3WGQ6SD · pith_short_8: GHMQMHRA

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/GHMQMHRAH3WGQ6SDTY33I7DN2R \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 31d9061e203eec687a439e37b47c6dd47d0a79453df873f2e489e90c58f3c84f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b5797021037e8d5a58a1b3c81f680657e88802b284b12022815ab8cde7cdc7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-04-17T13:55:36Z",
    "title_canon_sha256": "e63613076e016cbe8ea2e8ce5cc67c68dfd527a40e355fb39a035c30dcb3cbc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08274",
    "kind": "arxiv",
    "version": 1
  }
}